ANALISIS BIAYA OPERASIONAL PENAMBANGAN …
Kata Kunci : Produksi,Batubara, Biaya operasional, Keuntungan . ANALYSIS OF OPERATIONAL COSTS OF MINING UNDERGROUND COAL MINING PT. NUSA ALAM LESTARI, SALAK VILLAGE, TALAWI DISTRICT, SAWAHLUNTO CITY, WEST SUMATERA PROVINCE Name: Ayu Ariska NPM : 27 Adviser I: Dian …
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